(c)A cast iron piston for a single acting four stroke engine has thefollowing specifications:Cylinder bore 100mmStroke=125mmMaximum gas pressure = 5 N/mm²Indicated mean effective pressure = 0.75 N/mm²Mechanical Efficiency = 80%Fuel Consumption = 0.15kg per brake power per hourHigher Calorific value of fuel = 42X10³ kJ/kgSpeed=2000 r.p.m.Stating any assumptions made, determine the thickness of the piston headPiston Data:Thermal conductivity of cast iron: 46.6W/m/°CTemperature difference between the piston centre and edge: 220°C.Permissible Stress for cast iron: 38N/mm²Take C=0.05.

Answered: Image /qna-images/answer/00c6ad75-27fd-48ee-973e-53d8daed1b5a.jpg

Answered: (c) A cast iron piston for a single…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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During a test on a 3-cylinder four-stroke IC diesel engine with a cylinder bore and stroke length of 245 mm and 314 mm respectively, running at 448 r/min, the following results were obtained: Mass on Dynamometer mass hanger (arm length = 0.798 m) 217.7 kg Indicated mean effective pressure 445 kPa Fuel consumption (with Qnet,v = 39.8 MJ/kg, density = 0.944 kg/l) 6 ml/s Take acceleration due to gravity as 9.81 m per square seconds Calculate the mechanical efficiency in decimal fraction to 3 decimal places.
Question Design a 4 cylinder inline, turbo diesel engine to produce 103 kW of brake power at design speed when installed in a Multi-Purpose Vehicle (MPV). The square engine operates on a four stroke cycle and produces 20 bar of maximum brake mean effective pressure (bmep). Average piston speed is 11.5 m/s and bmep at peak power is 14.4 bar. If the decided values of torque position and torque increase are 50% and 28% respectively, determine the: a) bore b) stroke c) displacement d) maximum torque e) engine speed at peak torque as well as f) engine speed at peak power
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During a test on a 5-cylinder four-stroke IC diesel engine with a cylinder bore and stroke length of 240 mm and 297 mm respectively, running at 468 r/min, the following results were obtained: Mass on Dynamometer mass hanger (arm length = 0.825 m) 205 kg Indicated mean effective pressure 528 kPa Fuel consumption (with Qnet,v = 39.8 MJ/kg, %3D density = 0.944 kg/l) 6 ml/s Take acceleration due to gravity as 9.81 m per square seconds Calculate the brake thermal efficiency_ _in decimal form to 3decimal places.
You are asked to design a four cylinder four-stroke compression ignition engine for light trucks, which is required to provide a maximum brake torque of (2.000x10^2) Nm at the rated speed of (4.50x10^3) rpm. The bore (B)/stroke (L) ratio is required to be (9.0000x10^-1). Given that the bmep of the engine is assumed to be (1.0000x10^3) KPa, find its stroke (L). The answer should be in the unit of meter with 3 significant figures.
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1- A four-cylinder, two stroke cycle diesel engine with (10.9 cm) bore and (12.6 cm) stroke produces (88 kW) of brake power at (2000 RPM). Compression ratio is (18:1). Determine: (a) Engine displacement. Ans.: (4700.6 cm³). (b) Brake mean effective pressure. Ans.: (561.7 kPa).
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